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580 B Hydrolic pressure

Bertrrr

Bertrrr

Well-Known Member
Joined
Sep 5, 2016
Messages
72
Location
South Louisiana
Occupation
mechanic
What should the Hydrolic pressure be on this old machine ? There is no longer a gauge in place so I am curious as to how much pressure the pump is putting out. When I put a strain on the backhoe it slows down the engine so I am thinking the pump is still pretty strong. Thanks for the input.
 
S

sheepfoot

Senior Member
Joined
Feb 16, 2008
Messages
1,259
Location
wilmington nc
Your 580B rated pump output is 23 gpm at 2000 psi at 1900 rpm. Your loader valve main relief setting is 2200 +/- 75 psi at full throttle. Your loader with (bucket empty) full raise up in 4.2 seconds.
 
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